src: fix potential segmentation fault in SQLite #53850
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
The Local<Value> returned from ColumnToValue() and ColumnNameToValue() may be empty (if a JavaScript exception is pending), in which case a segmentation fault may occur at the call sites, which do not check if the Local<Value> is empty. Fix this bug returning early if an exception is pending (as indicated by the Local being empty). In the long term, these functions should return MaybeLocal instead of Local, but this patch is supposed to be a minimal bug fix only.
nodejs-github-bot
added
c++
cjihrig
approved these changes
Jul 14, 2024
tniessen
added
the
author ready
github-actions
bot
removed
the
request-ci
jasnell
reviewed
Jul 15, 2024
Comment on lines
+444
to
+446
| if (key.IsEmpty()) return; | ||
| Local<Value> val = stmt->ColumnToValue(i); | ||
| if (val.IsEmpty()) return; |
There was a problem hiding this comment.
nit... is it worth combining these into a single if (key.IsEmpty() || val.IsEmpty()) return just to make things a bit more compact?
There was a problem hiding this comment.
We usually fail fast when a JavaScript exception is pending to avoid unsafe calls into JavaScript in that state. It seems that ColumnToValue() does not call into JavaScript, but unless someone feels strongly, I'd err on the side of caution here.
tniessen
added
the
commit-queue
nodejs-github-bot
removed
the
commit-queue
|
Landed in 0b1ff69 |
ehsankhfr
pushed a commit
to ehsankhfr/node
that referenced
this pull request
Jul 18, 2024
The Local<Value> returned from ColumnToValue() and ColumnNameToValue() may be empty (if a JavaScript exception is pending), in which case a segmentation fault may occur at the call sites, which do not check if the Local<Value> is empty. Fix this bug returning early if an exception is pending (as indicated by the Local being empty). In the long term, these functions should return MaybeLocal instead of Local, but this patch is supposed to be a minimal bug fix only. PR-URL: nodejs#53850 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Yagiz Nizipli <[email protected]>
targos
pushed a commit
that referenced
this pull request
Jul 28, 2024
The Local<Value> returned from ColumnToValue() and ColumnNameToValue() may be empty (if a JavaScript exception is pending), in which case a segmentation fault may occur at the call sites, which do not check if the Local<Value> is empty. Fix this bug returning early if an exception is pending (as indicated by the Local being empty). In the long term, these functions should return MaybeLocal instead of Local, but this patch is supposed to be a minimal bug fix only. PR-URL: #53850 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Yagiz Nizipli <[email protected]>
Merged
targos
added
the
dont-land-on-v20.x
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The
Local<Value>returned fromColumnToValue()andColumnNameToValue()may be empty (if a JavaScript exception is pending), in which case a segmentation fault may occur at the call sites, which do not check if theLocal<Value>is empty. Fix this bug by returning early if an exception is pending (as indicated by theLocalbeing empty).In the long term, these functions should return
MaybeLocalinstead ofLocal, but this patch is supposed to be a minimal bug fix only.